<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>测试js回调</title>
    <script src="../zujian/han/han.js"></script>
</head>
<body>
<script type="text/javascript">
    function f1() {
        hwrite("111")
    }

    function f2(kk) {
        hwrite("222")
        kk();
    }
    f2(f1());

/*
    ============undefined============
    111
    =============undefined===========

    ============undefined============
    222
    =============undefined===========*/
</script>
</body>
</html>